Revision control
++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
++ /*!
++ \externalpage http://www.w3.org/TR/scxml/
++ \title SCXML Specification
++ */
++
++ /*!
++ \externalpage https://www.w3.org/TR/scxml/#data-module
++ \title SCXML Specification - 5 Data Model and Data Manipulation
++ */
++
++ /*!
++ \externalpage https://www.w3.org/TR/scxml/#SystemVariables
++ \title SCXML Specification - 5.10 System Variables
++ */
++
++ /*!
++ \externalpage https://www.w3.org/TR/scxml/#InternalStructureofEvents
++ \title SCXML Specification - 5.10.1 The Internal Structure of Events
++ */
++
++ /*!
++ \externalpage https://www.w3.org/TR/scxml/#invoke
++ \title SCXML Specification - 6.4 <invoke>
++ */
++
++ /*!
++ \externalpage https://www.w3.org/TR/scxml/#minimal-profile
++ \title SCXML Specification - B.1 The Null Data Model
++ */
++
++ /*!
++ \externalpage https://www.w3.org/TR/scxml/#ecma-profile
++ \title SCXML Specification - B.2 The ECMAScript Data Model
++ */
++
++ /*!
++ \externalpage http://www.w3.org/TR/scxml/#N11630
++ \title SCXML Specification - Calculator Example
++ */
++
++ /*!
++ \externalpage https://tools.ietf.org/html/rfc959
++ \title RFC 959
++ */